f(x)=-4x²-6x-1and g(x)=-x²-5x+3 find (f+g)(x)

Answers

Answer 1

[tex](f + g)(x) = - 4 {x}^{2} - 6x - 1 - {x}^{2} - 5x + 3 \\ [/tex]

[tex](f + g)(x) = - 5 {x}^{2} - 11x + 2 \\ [/tex]

And we're done.

Thanks for watching buddy good luck.

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Related Questions

y-3=2(x+1) please please help

Answers

Answer:

y=2x+5

Step-by-step explanation:

distribute 2 to x and 1, do this by multiplying each.

you should get y-3=2x+2.

then you have to move the -3 from the left to the right. but when you do this you have to change the -3 to a positive 3. then combine 3 and 2.

you then get the answer, y=2x+5.

Find the minimum sample size n needed to estimate μ for the given values of​ c, σ​, and E. c=0.98​, σ=8.7​, and E=

Answers

Answer:

The sample size n will be "52".

Step-by-step explanation:

The given values are:

c = 0.98​

σ = 8.7

Margin of error

E = 2

[tex]Z_{\frac{\alpha}{2} }=Z_{\frac{0.1}{2} }=1.65[/tex]

For 90% confidence level:

⇒  [tex]n=[\frac{Z_{\frac{\alpha}{2}}\times \sigma}{E} ]^2[/tex]

⇒     [tex]=[\frac{1.65\times 8.7}{2} ]^2[/tex]

⇒     [tex]=51.5165[/tex]

i.e.,

⇒  [tex]n=52[/tex]

WILL MARK BRANLIEST Give the equation of a line which is perpendicular to the given line. b y=3x+7

Answers

Answer:

y = -1/3 x + 7

Step-by-step explanation:

The constant in the end doesn't matter; what matters is the slope. To find a perpendicular slope, all you have to do is take the reciprocal of the slope and multiply it by -1. As mentioned before, the constant in the end doesn't matter, so the answer could also be y = -1/3x + 10, y = -1/3x -1/2, etc...

Hope this helped.

I need help!! Thank you

Answers

Answer:

A. is correct so, -5

Step-by-step explanation:

Have a good day.

Ill MARK BRAINLIST PLS HELP !!!

Answers

Answer:

This question is pretty simple, half the values given are just to confuse you

notice that we are given a function which gives us the height of the rock at any given time, so if we use that function for t=2 seconds, we will get the height of the rock after 2 seconds

We are given the function:

h(t) = -16t² - 50t + 220

replacing t with 2

h(2) = -16(2)² - 50(2) + 220

h(2) = -16(4) - 100 + 220

h(2) = -64 - 100 + 220

h(2) = 56 feet

Therefore, the height of the rock 2 seconds after throwing is 56 m

inverse of a*b=ab/2​

Answers

ab/2=a*b

i think if not please let me know

Which situation can be represented by the inequality 155 > 12x + 100 ?
Juanita saves $15 each week. Dan has already saved $100 and saves $12 each week. When
will Juanita have less money than Dan?
O Juanita saves $12 each week. Dan has already saved $100 and saves $15 each week. When
will Juanita have less money than Dan?
Juanita saves $15 each week. Dan has already saved $100 and saves $12 each week. When
will Juanita have more money saved than Dan?
Juanita saves $12 each week. Dan has already saved $100 and saves $15 each week. When
will Juanita have more money saved than Dan?
No

Answers

Answer:

What is the denotative meaning of “electrified fence”?

✔ a fence with an electric current

What is the connotative meaning of “electrified fence” in the passage?

✔ something dangerous and painful

What does the use of this phrase reveal about how the author views communism?

✔ She believes that communism is oppressive.

Step-by-step explanation:

trast me that the right answer

Emilio’s family volunteers at the local soup
kitchen every 30 days. Emilio has swimming
lessons every 9 days. He has both activities
this Saturday. When will he have both
activities again on the same day?

Answers

Answer:

Emilio will have both activities again on the same day after 90 days from this Saturday.

Step-by-step explanation:

To solve this question list the multiples of 30 and 9 to find the first common multiple because the two activities will happen again in a number divisible by both 30 and 9.

∵ The multiples of 30 are: 30, 60, 90, 120, ............

∵ The multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, .....

→ The common multiple is 90

∴ The common multiple of 30 and 9 is 90

→ That means the activities will meet again after 90 days from

   this Saturday

Emilio will have both activities again on the same day after 90 days from this Saturday.

Jennifer owes her friend $20. What does o mean in this situation?

Answers

We need the rest of the problem a picture or something

Answer:

where is the hole question

Step-by-step explanation:

help this is overdue

35 <7(2−b) or 13(15b−12)≥21

Answers

35 < 7 ( 2-b ) or 13 ( 15b-12)>= 21

35 < 14 - 7b or 195 b - 156 >= 2

35-14<-7b or 195b >= 2 + 156

21 < -7b or 195 b >= 158

b < 21/-7 or b>= 158/195

b < -3 or b >= 158/195

The simplification form of the inequality 35 <7(2−b) or 13(15b−12)≥21 is b < -3 or b  ≥  158/195.

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

It is given that:

The inequality is:

35 < 7(2 − b) or 13(15b − 12) ≥ 21

After simplification:

35 < 14 - 7b or 195 b - 156 ≥  2 (using distributive property)

35-14<-7b or 195b ≥  2 + 156

21 < -7b or 195 b ≥  158

b < 21/-7 or b ≥  158/195 (division property of equality)

b < -3 or b  ≥  158/195

Thus, the simplification form of the inequality 35 <7(2−b) or 13(15b−12)≥21 is b < -3 or b  ≥  158/195.

Learn more about the inequality here:

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Find the 15th term of the geometric sequence 1, -4, 16, ...

Answers

Answer:

268,435,456

Step-by-step explanation:

Multiply by -4

Office Mac purchases packs of pencils from the Manufacturer for $2.00 and applies a mark-up of 40%. How much do they actually sell the pencils for?

a. $2.00

b. $0.80

c. $2.80

d. $1.20

Answers

Answer:

the answer is b

Step-by-step explanation:

because

mark-up=    profit    

                cost * 100%

making it:

40% =      0.80    

           2.00 * 100%

The price of a Technology stock was $9.73 yesterday today the price Rose to $9.80 find the percentage increase round your answer to the nearest tenth of a percent

Answers

Answer:
1.34 %
Explanation:
First of all subtract the 2 values
9.84

9.71
=
0.13

then use this value and find the percentage from the original price which was 9.71 so
0.13
9.71

100

percentage increase is
1.34
%

A florist sells a dozen roses for $35.40. She sells individual roses for the same unit cost. Write an equation to represent the relationship between the number of roses, x, and the total cost of the roses, y. How much would 18 roses cost?

Answers

Answer: The equation is

The cost of 18 roses is 53.10.

Step-by-step explanation:

Given:

A florist sells a dozen roses for 35.40. She sells individual roses for the same unit price.

Now, to find the cost of 18 roses and write an equation to represent the relationship between the number of roses, x, and the total cost of the roses, y.

1 dozen = 12.

Now, to get the cost of 18 roses we use unitary method:

If 12 roses cost = 35.40.

So, 1 roses cost = 2.95.

Thus, 18 roses cost = 53.10.

Therefore, the cost of 18 roses = 53.10.

Now, to write an equation the relationship between the number of roses and the total cost of the roses:

Cost of per rose = 2.95.

As, given in question:

Number of roses =

Total cost of the roses =

Total cost of the roses = Cost of per rose × Number of roses.

So, the equation is:

Therefore, the equation is And the cost of 18 roses is 53.10.

A cube has a volume of 8 cubic inches. What is the length of each edge of the cube?

Answers

Answer:

2in

Step-by-step explanation:

because 2x2x2=8

PLEASE HELP AGAIN ?! stuck :(

Write a compound inequality for the graph shown below. Use z for your variable.

Answers

Answer:

wat happened to yoi

are u fine

plz help me will give brainlyest

Answers

Answer:

1. x = independent variable: Age

y = dependent variable: Accidents

2. Age scale and Accidents scale

The scale for age ranges from 15 - 30 with the value of 5 difference between each number.

While the accidents scale ranges from 0 -1 with no difference in between.

3. In my opinion, the scatter plot looks as though it decreases in accidents once the age rises. As seen from the data shown.

Step-by-step explanation:

1) x is considered as  the independent variable, while y is considered the dependent value.

2) There are two sets of scales, one for the x and the other for y. These scales are the values that are interpreted in order to show data of the graph, due to their number and various size(s).

3) If you were to draw a line through the graph, you can somewhat create the image that the line would go down into the right corner! Meaning that it is decreasing over time.

Simplify:
(7 + 2i)(9 - 6I)

Answers

Answer:

27

Step-by-step explanation:

hope this helped <3

Simplify i38.
i
−1
−i
1

Answers

The value of ( i )³⁸ will be equal to -1. The correct option is B.

What is an expression?

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given expression ( i )³⁸ is the I value of the complex number. The I value of the complex number is equal to the square root of the negative one. The expression will be solved as below:-

( i )³⁸ = (√-1)³⁸

( i )³⁸ = -1

Therefore, the value of ( i )³⁸ will be equal to -1. The correct option is B.

To know more about an expression follow

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PLEASEEEE HELPPPP!!!!!!!

h(x) = 2 - 11
W
ha
- = -5

Answers

Answer:

x= 6

Step-by-step explanation:

h ( x ) = x - 11

h ( 6 ) = 6- 11

h = -5

if a sample of 35 golfers is taken from a population of 72 golfers the sample mean, x, is the mean of how many golfers scores

Answers

Answer: 35

Step-by-step explanation:

The sample mean, denoted by  (pronounced "x bar"), represents the average value of a given variable in a sample. In this case, we are trying to find the sample mean of golfers' scores.

To calculate the sample mean, we need to sum up all the individual scores in the sample and divide by the number of golfers in the sample. Given that we have a sample of 35 golfers from a population of 72 golfers, we can conclude that the sample mean, , represents the mean of the scores of these 35 golfers.

Mathematically, the formula for calculating the sample mean is:  = (x1 + x2 + x3 + ... + xn) / n where x1, x2, x3, ..., xn represent the individual scores, and n represents the sample size. Therefore, the sample mean, , is the average of the scores of the 35 golfers in the sample. To find the exact value, you would need to know the actual scores of each golfer.

To know more about golfers visit:

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Every year, the population of a small town doubles. It starts off with 150 people. How many people are in the town in 7 years?

Answers

Answer:

1050

Step-by-step explanation:

Multiply 150 by 7

An analytical laboratory is asked to evaluate the claim that the concentration of the active ingredient in a specimen is 86%. The lab makes 3 repeated analyses of the specimen. The sample mean result is 0.8708. The true concentration is the mean m of the population of all analyses of the specimen. The standard deviation of the analysis process is known to be LaTeX: \sigmaσ = 0.0068. Is there significant evidence at the 1% level that LaTeX: \muμ is different than 0.86? (assume normality)

Answers

Answer:

Decision rule

   Reject null hypothesis

Conclusion

There is significance evidence that the true mean is different from 0.86

Step-by-step explanation:

From the question we are told that

  The population mean   [tex]\mu  = 0.86[/tex]

   The  sample is  mean is [tex]\=  x  =  0.8708[/tex]

  The standard deviation is  [tex]\sigma =  0.0068[/tex]

The  level of significance is  [tex]\alpha  =  0.01[/tex]

  The  sample size n =  3

The null hypothesis is  [tex]\mu =  0.86[/tex]

The alternative hypothesis  is [tex]\mu \ne  0.86[/tex]

Generally the test statistics is mathematically represented as  

    [tex]z =  \frac{\=  x  - \mu }{ \frac{\sigma}{\sqrt{n} } }[/tex]

=> [tex]z =  \frac{ 0.8708 - 0.86 }{ \frac{0.0068}{\sqrt{3} } }[/tex]

=>  [tex]z =  2.751  [/tex]  

Generally  p- value is mathematically represented as

       [tex]p-value =  2 P(z >2.751   )[/tex]

From the z-table  

        [tex]P(z >2.751 ) =  0.0029707[/tex]

So

     [tex]p-value =  2 *  0.0029707[/tex]

=>   [tex]p-value =  0.00594 [/tex]

From the obtained question we see that  [tex]p-value  <  \alpha[/tex]

Hence we reject the null hypothesis

 

A rectangle has an area of 352 square feet. Its widih is ten feet less than twice the length Find the measures of the length and width of the rectangle.​

Answers

Answer:

The Length is 16.

The width is 22.

Step-by-step explanation:

[tex]Area=Width*Length\\352=(2L-10)*(L)\\352=2L^2-10L\\0=2L^2-10L-352\\x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} \\b=-10; a=2; c=-352\\ x=\frac{10+/-\sqrt{100-4(-352)*(2)} }{2*2} \\x=\frac{10+/-\sqrt{100+2816)} }{4}\\x=\frac{10+/-\sqrt{2916)} }{4}\\x=\frac{10+/-54 }{4}\\x=64/4=16[/tex]

Which expression correctly represents “six more than the product of five and a number, decreased by one”?
6 + 5 n minus 1
6 + 5 + n minus 1
6 + 5 (n minus 1)
(6 + 5) n minus 1

Answers

C. 6+5(n-1) correctly represents

Answer:

its b

Step-by-step explanation:

Which expression represents “3 more than twice a number”?

Answers

shajakkalqoaoapwplelelwlepwppepsslslll

Answer:

I think the answer is this 2x+3

Annabelle lives at Bermondsey in London. She has to speak at a conference in Birmingham at 10.30am.

It will take her an hour from her home to get to Euston Rail
Station, from where she will get a train to Birmingham.

The train journey from Euston
to Bimingham is an hour and 10 minutes.

Trains to Birmingham run at the following times: 5 minutes past the hour, 25 minutes past the hour and 45 minutes past the hour.

The meeting venue in Birmingham is a 5-minute walk from the station.

What is the latest time that Annabelle can leave home, if she is to make it on time for
the meeting in Birmingham ?

Show your work.

HELP ME PLEASE!!!

DUE TODAY. THANK YOU SO MUCH.



Answers

If she lives in bermondesy what team do you reckon she supports I reckon she supports Charlton or Millwall

Answer:

The conference in Birmingham is at 10.30am.

She has to leave at 08.00 am from her home.

Step-by-step explanation:

Because  

• Time to get Euston Rail Station is 1 hour so she will be at station at 09.00 am.

• Trains to Birmingham run at the following times: 5 minutes past the hour, 25 minutes past the hour and 45 minutes past the hour. Which means she will get the train at 9.05 am.

• The train journey from Euston to Birmingham is an hour and 10 minutes so she will reach Birmingham station at 10.15 am.

• She will reach the meeting venue in Birmingham at 10.20 am as there is a 5-minute walk from the Birmingham station to meeting venue.

She will reach to meeting time 10 minutes earlier which will allow here to get ready for the meeting.

Note:

If we want to overcome the 10 minutes and she live 8.10 am from here home then she will reach to station at 9.10 am. According to the train timing she will get train at 09.25 am which means at the end she will get late about 10 minutes to reach the venue for the meeting.

Find the value of x in the billiard table

Answers

Answer:

x=60

Step-by-step explanation:

It is an equiangulat traingle, so all of the angles will be equal. knowing that the angles of a triangle always add up to 180 degrees, you need to divide 180/3 to find the degrees of each angle.

180/3 = 60

so, x=60

Evaluate
5
9
÷
5
18
jjijijij
kok

Answers

Answer:

i cant even see the words

Step-by-step explanation:

sorry i cant help

If it’s 59 divided by 518 than it’s 0.1138

Complete each statement from the information given and state the reasons and the triangle criterion you used. If the triangles cannot be shown to be congruent, leave the box for the second triangle blank and chose for reason “Cannot be determined.”

Answers

Answer:

BOY=MAN because of ASA

Step-by-step explanation:

There is an angle in one corner and another corner also has a angle the last side is in the middle

Answer:

asa

Step-by-step explanation:

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